“An Honest, Well-Experienced Heart” introduces us to the life and writings of Puritan preacher and author John Flavel (1627–1691). In his brief, introductory biography, Adam Embry discusses Flavel’s background, ministry, and theology of keeping the heart, which, for Flavel, “is the great business of a Christian’s life.” Centuries ago, Flavel wrote, “Above all other studies in the world, study your own hearts.” Embry guides us through forty-two short passages from Flavel’s writings that acquaint us with this dedicated Puritan minister’s piety and help us see the importance of this great business of keeping and managing our hearts.“John Flavel blended skillfully a robust Reformed theology with a warm-hearted Puritan piety. This made his writings both profound and simple. I pray that Adam Embry’s primer on Flavel’s work will promote a new generation of thoughtful readers intent on loving Christ more.” — Ryan McGraw, pastor of Grace Presbyterian Church in Conway, South Carolina